3730dfdaf5
Add a flag to hir and ty TypeParameterDef and raise an error when using explicit type parameters when calling a function using impl Trait in argument position.
39 lines
1.0 KiB
Rust
39 lines
1.0 KiB
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(generic_param_attrs, rustc_attrs)]
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fn func<#[rustc_synthetic] T>(_: T) {}
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struct Foo;
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impl Foo {
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pub fn func<#[rustc_synthetic] T>(_: T) {}
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}
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struct Bar<S> {
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t: S
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}
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impl<S> Bar<S> {
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pub fn func<#[rustc_synthetic] T>(_: T) {}
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}
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fn main() {
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func::<u8>(42); //~ ERROR cannot provide explicit type parameters
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func(42); // Ok
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Foo::func::<u8>(42); //~ ERROR cannot provide explicit type parameters
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Foo::func(42); // Ok
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Bar::<i8>::func::<u8>(42); //~ ERROR cannot provide explicit type parameters
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Bar::<i8>::func(42); // Ok
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}
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